Electric high and low alarm for water-columns.



J. E. GUSTIN. ELECTRIC HIGH AND LOW ALARM FOR WATER COLUMN S.

APPLICATION FILED SEPT. 28, 1911.

1 ,066,--129. Patented July 1, 1913.

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JOHN E. GUSTIN, 0F FORT DODGE, IOWA.

ELECTRIC HIGH AND LOW ALARM FOR WATER- COLUMNS.

Specification of Letters Patent.

PatentedJuly 1, 1913.

I Application filed September 28,1911. Serial No; 651,849.

To all whom 2'25 may concern:

Be it known that I, .JoHN E. GUSTIN, a citizen of the United States, residing at Fort Dodge, in the county of WVebster and State of Iowa, have inventeda certain new and useful Electric High and Low Alarm for ater-Columns, of which the following is a specification. 1

The object of my invention is to provide a new and improved electric high and low alarm for water columns, of simple, durable and inexpensive construction by which certain minimum and maximum heights of water in a boiler or the like, will be clearly and accurately indicated.

More particularly it is my objectto provide such a device so constructed and arranged that when a certain maximum or minimum height has been reached by the water, an electric alarm will be sounded.

A further object is to provide wires and parts for carrying an electric current, which are fully insulated from the rest of the device, and from the machinery to which the device is attached.

My invention consists in certain details, in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim and illustrated in the accompanying drawings, in which I Figure 1 shows a vertical, central, sectional view of an electric and low alarm for water columns, embodying my inven tion. Fig. 2 shows a detail view partly in section of the electric contact points and of themeans whereby the same are insulated from the rest of "the device. Fig. 3 shows a detail, sectional view of a part of the mech anism connected with the floats, and Fig. 4 shows another detail view of a part of my device.

In the accompanying drawings, I have used the reference numeral 10 to indicate an upright cylindrical chamber which communicates at either end with pipes 12 and 13 leading to a boiler or the like. Extending laterally from the cylindrical chamber 10 near the upper and lower ends thereof respectively are chambers 15 and 1 1. In each of theichambers 14 and 15 near the outer end thereot is a cross piece 16. Pivotally secured to the cross piece 16 and extending from thence into the chamber 10 are the floats 18. 1 The chambers 14 and 15 chamber 10 as clearly shown in Fig. 1, and said chambers 14 and 15 communicate with the chamber 10. The chamber 15 is pro-- vided with an upwardly extending lug 19 are preferably screwed into the walls of the near its inner end designed to limit the downward movement of the arm 17.- The chamber 14 is provided near its inner endwith' a downwardly extending lug 20 d signed to limit the upward movement of-the I arm 17, and of the float 18 secured thereto. The chamber 14 is provided with an upward extension 21 provided with a vertical central opening. An arm 22 is secured to the arm 17 in the chamber 14 in the manner herein after mentioned and extends upwardly through the opening in the extension 21 to a point spaced apart from said extension. A cap 23 provided with a central opening which registers withthe opening in the extension 21 is screwed upon the extension 21. Packing material 2 1 is placed within the cap 23 around the arm 22.

The manner in which the arm 22 is attached .to the arm 17 is clearly shown in Fig. 4. The member 25 is provided with bifurcated ends and is pivoted to the arm 17 by means of a cotter pin 26 or other suitsaid opening. By means of the mechanism just described, pivotal movement of thearm 17 imparts vertical movement to the arm 22.

Extending downwardly from the chamber 15 is an extension 21 on which is a cap 23 containing packing material 2 1 all similar to the extension 21, the cap 23 and the packing material 24. Extending downwardly from the arm 17 in the chamber 15 through the extension 21 is an arm 22 similar to the arm 22 and connected with the arm 17 in the chamber 15 in a way similar to the connection between the arm 22, and the arm 17 in the chamber 1 1.

- The upper end of the arm 22 is bent at right angles to said arm in the direction of the chamber 10 and terminates in a laterally extending circumferential flange 29. Adjacent to the flange 29 is a flange 31 similar to the flange 29, and provided with a downwardly extending electrical contact point 32. Below the contact point 32is alaterally extending plate 33 secured to the wall of the chamber and ending in a laterally extending circumferential flange 34. Ad acent to the flange 34 is a plate 35 provided with a laterally extending circumferential flange 36. The flanges 34 and 36 are secured together by means of bolts 37. Insulating material 38 and 39 is placed between the flanges 34 and 36 and around the bolts 37. The flanges 31 and 29 are secured together in the same way as'the flanges34tand 36 and are similarly provided with insulating material between the flanges and around the bolts 37. Screwed into the plate is a screw 40, .the upper end of which forms a contact point designed at certain times to be in actual contact-with the contact point 32. A conducting wire 41 connects the contact point of the screw 40 with one pole of an electric battery 42. Another conducting wire 43 connects the contact point 32 with an electrically actuated bell 44. The hell 4% is connected by the wire d5 with the other Y pole of the battery 42.

y The mechanism heretofore described is so constructed and arranged that when the water' in the chamber 10 is high enough to hold the float 18, at the upper limit of its movement, the arm 22 will be raised so that the contact point 32 does not touch the screw 40. When the water in the chamber 10 is lowered to permit the float18 to drop to the lower limit of its movement, the contact point 32-isdrawn into engagement with the screw 40 and an electric circuit is formed, the current whereof causes an alarm by the bell 4.4;

The float 18% the upper end of the chamber 10' and the parts connected therewith are provided with similar means for making and breaking an electric circuit. The point 32 which is similar to the point 32 extending upwardly and the screw4-8 similar to the screw 40 extending downwardly. When the height of the water is such as to raise the that while the Water is in such intermediate position, the lower float 18 when raised holds the contact point 32 out of engagement with the screw 40 and the weight of the 'upper float 18 holds the contact point 32 out of engagement with the screw 40 The advantages of my improved electric high and low alarm for water columns will be seen from the description hereinbet'ore made. The water upon reaching a minimum or a maximum height as the case may be, automatically closes an electrical circuit and sounds an alarm. No current is wasted until the water reaches either its maximum or minimum height. The simple and durable constructicn of the parts of my device make it inexpensive to install. the attention of the engineer to the condition of his water whether he looks at a gage or not.

My device may be used with a boiler or with other machinery where it is necessary or desirable to know the height of water.

I claim as my invention:

' In a device of the class described, a cylindrical chamber communicating at either end with a boiler, and means whereby the water in said chamber when it reaches a certain height causes an audible alarm, said means comprising a float in said chamber, a laterally extending chamber opening into said first chamber, an arm secured to said float and pivoted at its other end within said second chamber, a vertical arm extending from a point on said first arm spaced apart from the ends thereof to a point outside the said second chamber and slidingly mounted in the wallet the said second'chamber, said arms being so connected that pivotal movement of said first arm, imparts vertical .movement to said second arm, a plate extending laterally from said first chamber,

contac points on the outer end of said last named arm and on said plate, insulated from ihe other parts hereinbefore described,

said contact points being designed to engage each other when said float is moved by the water in said first chamber to a certain point. an electric circuit having said contact point and an alarm included in it.

Des Moines, llowa, August 23, 1911..

JOHN ,E. GUSTTN. l/Vitnesses:

ROBERT Hiram, SETH Tiaorras, B. E. Dean;

My device calls 

